One of the essentials of prayer is having firm faith in Allah. In situations in which one feels desperate, people feel no doubt about Allah's existence and His help. Yet a person ought also to feel Allah's existence, might and grandeur while praying during times of ease. In fact, not only during prayer, but at every instant of daily life, a believer should retain this awareness. At every moment he must feel Allah's existence and closeness and pray, for only someone who is cognizant of Allah's existence acknowledges the meaning and importance of prayer. Prayer is an intimate and personal bond between people and Allah. Through prayer, people express all their troubles and wishes to Allah and implore Him to assist them. In return, Allah answers His servants' prayer.
As said earlier, prayer in the Qur'anic sense can by no means be limited to a few rituals. As the verse "… remember Allah standing, sitting and lying on your sides." (Surat an-Nisa: 103) maintains, one can bring Allah to mind and pray to Him at any time and under all conditions, without necessarily performing any particular ritual or ceremony. That is because what matters is not the outward performance but one's sincerity.
A believer who complies with Allah's command which says, "Remember the Name of your Lord, and devote yourself to Him completely." (Surat al-Muzzammil: 8) turns to Allah alone, and submits and pleads to Him.
Hadrat Anas Radi ALLAH Taala Anhu reported that the Messenger of Allah Peace And Blessings Be Upon Him has said, “Everything has a heart, and the heart of the Qur’an is Yasin. Allah records anyone who recites Yasin as having recited the Qur’an ten times.”
[Sunan Tirmidhi, Vol 2, Page 116 - Sunan Daarimi, Vol 2, Page 336]